HR 9038
From Infogalactic: the planetary knowledge core
| Observation data Epoch 2000 Equinox 2000 |
|
|---|---|
| Constellation | Cepheus |
| Right ascension | 23h 52m 25.31799s[1] |
| Declination | +75° 32′ 40.5141″[1] |
| Apparent magnitude (V) | 6.40[2]/11.4[3] |
| Characteristics | |
| Spectral type | K3 V[4] + M2 |
| U−B color index | 0.70[2] |
| B−V color index | 0.98[2] |
| R−I color index | 0.5 |
| Astrometry | |
| Radial velocity (Rv) | +4.60[5] km/s |
| Proper motion (μ) | RA: 341.01[1] mas/yr Dec.: 41.50[1] mas/yr |
| Parallax (π) | 91.82 ± 0.30[1] mas |
| Distance | 35.5 ± 0.1 ly (10.89 ± 0.04 pc) |
| Orbit[3] | |
| Primary | HR 9038 A |
| Period (P) | 290 yr |
| Semi-major axis (a) | 4.14" |
| Eccentricity (e) | 0.55 |
| Details | |
| HR 9038 A | |
| Surface gravity (log g) | 4.71 ± 0.04[6] cgs |
| Temperature | 4,660 ± 110[6] K |
| Metallicity [Fe/H] | 6.62[6] dex |
| Other designations | |
| HR 9038 A: HD 223778, HIP 117712, HR 9038, SAO 10879 | |
HR 9038 is a ternary star system located thirty-five light-years away, in the constellation Cepheus. Component A is a spectroscopic binary system with an orbital period of 7.753 days and a combined stellar classification of K3 K.[7] Component B component is a red dwarf star that orbits the primary pair every 290 years.[3]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 2.0 2.1 2.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 3.0 3.1 3.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
- ↑ 6.0 6.1 6.2 Lua error in package.lua at line 80: module 'strict' not found.
- ↑ Lua error in package.lua at line 80: module 'strict' not found.
External links
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